Number of integer compositions of n whose leaders of maximal anti-runs are not distinct.

A374678

Number of integer compositions of n whose leaders of maximal anti-runs are not distinct.

Terms

    a(0) =0a(1) =0a(2) =1a(3) =1a(4) =3a(5) =7a(6) =15a(7) =32a(8) =70a(9) =144a(10) =311a(11) =653a(12) =1354a(13) =2820a(14) =5850a(15) =12054a(16) =24810a(17) =50923a(18) =104206a(19) =212841a(20) =433919a(21) =882930a(22) =1793810a(23) =3639248a(24) =7373539a(25) =14921986

External references